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Circular dichroism spectra confirm the quadruplex structure of two transcripts, (AGG)17 and (UGG)17. A comparison of CD spectra for five transcripts, (CUG)20, (CCG)20, (CGG)20, (UGG)17, and (AGG)17, incubated in two different buffers containing either 100 mm NaCl (continuous line) or 100 mm KCl (dashed line) is shown.
